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Old 05-19-2015, 08:45 AM
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J.C.you J.C.you is offline
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Join Date: Jan 2001
Location: moccasin bayou, Louisiana
Posts: 4,794
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Quote:
Originally Posted by Ron Landis View Post
looking at a Nocturne / black Tri-Power four speed 3.90 HD rear, metallic brakes. tach and not much else. PHS shows HD fan. Radiator and air cleaner. Ride and handling and HD Posi. Doesn't all that HD cooling come on a GTO optioned car anyway? This one has been sitting in a barn sans drivetrain for @ forty years...straight with NO rust! What is the correct engine code? I was thinking 76x? Mine has a big car engine but it's just a LeMans anyway. Anyone have a correct block and/or heads to sell? Intake is still with the car. Not overly concerned about date codes. Any help appreciated. Thanks in advance.


You will want the W in the code for the correct 4speed block. I am building two 64 tripower 4speed engines. One will be a stocker type and the other a ringer. One of my blocks has the W stamped before the 76x, or W76X and the other stamped as 76XW. Anyone seen this before? Will get a couple of pics and post.

I may part with one of these longblocks. Preferably the stocker build.

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1963 Cat SD Clone (old school) streeter
1964 GTO post coupe, tripower, 4speed (build)
1965 GTO 389 tripower, 4 speed, driver
1966 GTO dragcar
1966 GTO Ragtop
1969 Tempest ET clone street/strip
1969 GTO Judge RA lll, auto
1969 GTO limelight Conv. 4speed go and show (sold)
1970 GP SSJ
1970 GTO barn find..TLB…390 horse?….yeh, 390
1972 GTO 455 HO, 4 speed, (build)
1973 Grand Safari wagon, 700hp stoplight sleeper
525ci DCI & 609ci LM V head builds

Last edited by J.C.you; 05-19-2015 at 08:54 AM.